Product feed (only for product feed integration)
If you are using a feed integration for your product catalog, you will need to add your product feeds here. You can upload multiple feeds if you have your catalog split up. Usually, one is only needed.
The unique identifier is used to identify your products and connect them across your markets (this way, you only need to tag a product once, no matter how many markets you have). Please ensure that this identifier is used and available in all of your feeds and markets.